Flush-valve attachment.



. W. A. LUPTON.

FLUSH VALVE ATTACHMENT.

APPLICATION FILED JUNE so, 1913.

Patented Feb. 3 1914 lnveritor .Witnesses I Attorn ys UNITED sTATEs PATENT OFFICE.

WILLIAM A. LUPTON, F FORT WORTH, TEXAS.

FLUSH-VALVE ATTACHMENT.

Specification of Letters Patent.

Patented Feb. 3,1914.

Application filed June so, 1913. Serial N... 776,674.

the following is a specification.

- main compartment by the, passage 6. The

This invention relates to flush valve attachments and the principal object of the same is to provide automatic means for the seating and closing of the valve in a flush tank when there is a tendency to overflow the bowl.

A further object is to' provide a float which rises as the water rises to abnormal levels in the bowl and automatically closes the flush valve to stop the further flow of water. 4

Another object is to provide a device of the above described type which may be.

readily secured to bowls and flush tanks which are already installed.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, can be made within the scope of what is claimed, without departing from the spirit of the invention.

In the drawings accompanying this specification and forming a part thereof, the preferable form of my invention is illustrated, in which Figure 1 is a sectional view in elevation of my improved apparatus. Fig. 2 is a similar view showing a slightly different form of flush tank and flush valve. Fig. 3 is a view illustrating my improved device secured to a bowl and flush tank which has not been previously modified but represents the ordinary installment.

Referring to the drawings in which similar reference numerals designate corresponding parts throughout the several views, 1 represents the conventional type of bowl and in Figs. 1 and 2 is provided with an auxiliary compartment 5 in communication with the auxiliary compartment 5 is on the level with the upper portion of the bowl and houses a float 7 therein. To the latter is secured a rod 8 which passes through a suitable aperture 9- in the top cover 9 of the auxiliary compartment.

The flush tank 10 communicates with the crumed to the upper extremity of the guide pipe 15 and is connected, at one end to the float rod 8 and at'its other end engages the valve stem 14 in such a manner that when the float 7 is raised by an abnormal rising of water within the bowl 4, the flush valve 13 will beautomatically closed.

The construction illustrated in Fig. 2'is substantially the same as the foregoing with the exception however that a slightly different form of flush tank is provided in that a siphon tube 17 is mounted within the flush tank and the float 7 operates a flap valve 18 through the intervention of the fulcrumed levers 19 and 20 and the tie rod or wire 21 extending therebetween. The foregoing bowls have been modified for the accommodationof the float and in order that the device may be used without requiring any ma terial structural changes in the bowl, a separate tank or auxiliary compartment 22 is provided and which takes the place of the auxiliary compartment 5 hereinbefore described. The auxiliary compartment 22 is provided with the pipe 23 communicating therewith and communicating with the main compartment of the bowl 4:. In order to prevent thewater from becoming trapped within the separate auxiliary compartment 22, a suitable vent pipe 24 is provided and which communicates with the supply pipe 11. A suitable float 7 is mounted within the separate auxiliary compartment 22 and is secured to and operates a float valve rod 25,

the latter extending up within the flush tank 26 and automatically closing the flush valve thereof when the water rises to abnormal levels within the bowl.

From the foregoing it will be apparent that with my improved apparatus it will be practically impossible for a bowl to overflow and furthermore the means whereby the flush valve is closed by the abnormal rising of the water within the bowl is entirely automatic in its nature and requires no structural changes to be made in regard to the flush valve mechanism. Furthermore as illustrated in Fig. 3, the apparatus may be easily and readily applied to those devices already in actual service, it only being necessary that a separate auxiliary com partment 22 be in communication with the owl 4 and that the level thereof be approximate the upper'end thereof. Furthermore attention is called to the fact that the float 7 may be adjusted with regard to the float rod'illustratedat 8, 21 and 25 in the several views or whatis the same thing, the length of the float rods may be varied so that the flush tank valve may be closed at different abnormal levels of water within the bowl 4.

Having thus fully described the invention what I claim is 1. A flush tank comprising a float valve, a valve stem carried thereby, said float valve when raised from the valve seatadapted to empty the entire contents of the said flush tank, a lever pivotally carried by the \said flush tank'and with one portion thereof engaging the said float valve stem adapted ,to' close the said valve, and a float controlled member pivotally secured to the said lever adapted to prematurely close said float valve through the intervention of said valve stem and lever.

, 2. A flush tank comprising a float valve controlling the outlet thereof, said float valve when raised from the valve seat held inan open position by the buoyancy thereof, a valve stem carried by said valve, .a lever pivotally carried by said tank with one portion thereof engaging the said valve stem, a rod pivotally secured to the said lever, means disposed at the remote end of said rod,

raisin said rod during abnormal water levels 1n the tank fed by the said flush tank, the said rod during the abnormal water levels raising a portion of the lever and lowtank'mounted thereabove and in communication therewith, a valve disposed within the flush tank, said valve when opened remaining in an open condition until the entire contents of the-flush tank have been emptied therefrom, a pivoted lever carried in said flush tank with one portion thereof engaging said valve, a rod pivotally secured to said lever, means disposed at the lower extremity of said rod for raising said rod with I the abnormal rising of liquid within said 4. The combination of a bowl and a flush tank mounted thereabove and in communication therewith, a valve disposed with said flush tank controlling the water delivered therefrom, said valve when opened remaining in an open position until the entirecon tents of the flush tank are emptied therefrom, a lever pivoted intermediate its ends, one extremity of said lever engaging the said valve, a float disposed within said flush tank, a rod secured thereto and pivotally secured to the remote end of said lever, said float raising the said rod during abnormal levels of liquid within the bowl, said rod when, so raised rotating the said lever, the remo e end of said lever forcing the said valve into a closed and seated position.

In testimony that I claim the foregoing as my, own, I have hereto aflixed my signature in the'presence of two witnesses.

WILLIAM A. LUPTO N Witnesses: I 

